7.10 Now that you have learned what information a Greek noun conveys, let’s see how Greek inflects its nouns to convey this information. We begin with the NOUN STEM. The stem tells you the person, place or thing to which the noun refers. For example:
παιδ- child
δαιμον- divinity, spirit
ἀρχοντ- ruler
To indicate the number and case of a noun, Greek adds CASE ENDINGS to the stems. Since Greek nouns most commonly use two numbers (Singular, Plural) and four cases (Nominative, Genitive, Dative, Accusative), Greek nouns need eight different endings to cover all the possibilities.